Closed protection structure for joint of natural gas pipeline

Abstract

The utility model discloses a natural gas pipeline joint sealing protection structure, and relates to the technical field of natural gas pipelines. Comprising a pipeline, the outer wall of the pipeline is sleeved with a protection structure, a guide structure is inserted into the top of the outer wall of the protection structure, the protection structure comprises a protection bottom shell, the inner side of the protection bottom shell is in butt joint with a protection top shell, and side frames are fixedly connected to the two sides of the outer wall of the protection top shell; the processor and the natural gas inspection machine installed on the top of the protection structure can monitor whether natural gas leakage exists in the protection structure or not in real time, and once leakage is detected, the warning lamp gives an alarm immediately. Meanwhile, the air suction end of the guiding structure communicates with the protection structure through the air entraining connector, leaked natural gas can be sucked into the air suction pipe in time and guided to be discharged, the automatic process from leakage detection to emergency treatment is achieved, potential safety hazards caused by natural gas leakage are avoided, and the safety performance is improved. And the response efficiency and the protection reliability of the pipeline leakage condition are also improved.

Description

Technical Field

[0001] This utility model relates to the field of natural gas pipeline technology, and in particular to a sealing and protective structure for natural gas pipeline connections. Background Technology

[0002] In current technologies, the safe operation of natural gas pipelines is crucial in the energy transmission sector. Pipeline connections, as weak points in the system, are prone to leaks due to seal failure, potentially leading to fires, explosions, and other safety accidents, while also causing energy waste and environmental pollution. Existing technologies often employ simple sealing designs (such as simple rubber rings or flange connections) for pipeline connections. Over long-term operation, these are susceptible to pipeline vibration, media corrosion, or external impacts, resulting in decreased sealing performance and an inability to effectively prevent gas leaks and moisture intrusion. Furthermore, while some existing technologies are equipped with leak detection devices, they lack automated emergency response mechanisms: when a leak is detected, manual on-site repairs are required, and personnel response time is constrained by geographical distance and transportation conditions, potentially leading to a continued escalation of the leak risk.

[0003] However, existing technologies still have shortcomings, such as the following:

[0004] While existing technologies possess real-time monitoring capabilities, limitations such as geographical distance and transportation conditions inevitably lead to delays in personnel reaching the leak point for repairs, making it difficult to address the leak on-site immediately after it occurs. This time lag can allow natural gas to continue leaking, increasing safety hazards and the difficulty of handling the situation. Summary of the Invention

[0005] The purpose of this utility model is to provide a closed protective structure for the connection of a natural gas pipeline, so as to solve the problem mentioned in the background art that it takes time for personnel to reach the maintenance location.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A protective structure for a natural gas pipeline connection includes a pipeline, a protective structure fitted onto the outer wall of the pipeline, a guide structure inserted into the top of the outer wall of the protective structure, the protective structure including a protective bottom shell, a protective top shell mating to the inner side of the protective bottom shell, and side frames fixedly connected to both sides of the outer wall of the protective top shell.

[0008] Preferably, a second sealing ring is installed on the inner side of the left and right sides of the protective top shell, a sealing docking post is installed at the bottom of both ends of the second sealing ring, and an insert block is installed at the bottom of the left and right sides of the protective top shell.

[0009] Preferably, slots are provided on the top of the left and right sides of the protective bottom shell, a first sealing ring is installed on the inner side of the left and right sides of the protective bottom shell, sealing mating grooves are provided on the inner side of both ends of the first sealing ring, and a sealing strip is installed on the top of the protective bottom shell.

[0010] Preferably, the outer wall of the side frame is provided with multiple positioning grooves, and bolts are inserted into the inner side of the positioning grooves, with nuts installed at the bottom of the bolts.

[0011] Preferably, an air vent is installed on the top of the outer wall of the protective top shell, and a processor is installed on the top of the outer wall of the protective top shell.

[0012] Preferably, a natural gas detector is installed at the bottom of the processor and inside the protective top shell, and a warning light is installed at the top of the processor and outside the protective top shell.

[0013] Preferably, the guiding structure includes an air intake tube, and a plurality of connecting tubes are installed at the bottom of the outer wall of the air intake tube, with an air intake end installed at the bottom of the connecting tubes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This protective structure connects the bottom and top protective shells, and uses a limiting structure consisting of inserts and slots, sealing posts and grooves to ensure precise alignment during installation. Simultaneously, the No. 1 and No. 2 sealing rings and sealing strips are respectively located inside the bottom and top protective shells. After the bolts are tightened, they are tightly pressed against the outer wall of the pipeline, effectively preventing moisture intrusion and gas leakage, forming multiple sealing barriers. This significantly improves the sealing performance of the pipeline connection, ensuring the safety and stability of natural gas transportation.

[0016] 2. The processor and natural gas detector installed on top of the protective structure can monitor for natural gas leaks in real time. Once a leak is detected, the warning light will immediately sound an alarm. At the same time, the suction end of the guiding structure is connected to the protective structure through the venting interface, which can promptly draw the leaking natural gas into the suction pipe and guide it out. This realizes an automated process from leak detection to emergency response, which not only avoids the safety hazards caused by natural gas leaks, but also improves the response efficiency and protection reliability in the event of pipeline leaks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the protective structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the protective bottom shell of this utility model;

[0020] Figure 4 This is a schematic diagram of the bolt structure of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the guide structure of this utility model.

[0022] In the diagram: 1. Pipeline; 2. Protective structure; 21. Protective bottom shell; 211. Protective top shell; 212. No. 1 sealing ring; 213. No. 2 sealing ring; 214. Insert block; 215. Sealing docking post; 216. Sealing docking groove; 217. Slot; 22. Side frame; 221. Positioning groove; 23. Bolt; 231. Nut; 24. Sealing strip; 25. Processor; 251. Natural gas inspection machine; 252. Warning light; 26. Gas venting interface; 3. Guiding structure; 31. Suction pipe; 32. Connecting pipe; 33. Suction end. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-5As shown, a natural gas pipeline connection sealing and protection structure includes a pipeline 1, with a protective structure 2 fitted onto the outer wall of the pipeline 1 to seal the pipeline connection. A guide structure 3 is inserted into the top of the outer wall of the protective structure 2 to draw leaked natural gas from the inner side of the protective structure 2 into the guide structure 3 for discharge. The protective structure 2 includes a protective bottom shell 21, with a protective top shell 211 mated to the inner side of the protective bottom shell 21. The protective bottom shell 21 and the protective top shell 211 are joined together to form the protective structure 2. Side brackets 22 are fixedly connected to both sides of the outer wall of the protective top shell 211 to secure the connection between the protective bottom shell 21 and the protective top shell 211. Second sealing rings 213 are installed on the inner sides of the left and right sides of the protective top shell 211 to better fit the inner side of the protective top shell 211 against the outer wall of the pipeline. The bottom of both ends of the second sealing rings 213 are installed with... There is a sealing docking post 215, which is used to insert into the inner side of the sealing docking groove 216. The bottom of the left and right sides of the protective top shell 211 is equipped with a plug 214 for insertion into the slot 217. The top of the left and right sides of the protective bottom shell 21 is provided with a slot 217 for limiting the plug 214. The inner side of the left and right sides of the protective bottom shell 21 is equipped with a first sealing ring 212. The inner side of both ends of the first sealing ring 212 is provided with a sealing docking groove 216. The top of the protective bottom shell 21 is equipped with a sealing strip 24 to make the inner side of the protective bottom shell 21 better fit the outer wall of the pipe. The outer wall of the side frame 22 is provided with multiple positioning grooves 221 to facilitate the insertion of bolts 23. The inner side of the positioning groove 221 is used to insert bolts 23, and the bottom of the bolts 23 is equipped with nuts 231. Thus, the protective bottom shell 21 and the protective top shell 211 are fastened by the combination of bolts 23 and nuts 231.

[0025] It should be noted that, in this embodiment, when installing the protective structure 2, the protective bottom shell 21 is first fitted onto the outer wall of the pipe 1, and the protective top shell 211 is also fitted onto the protective bottom shell 21 and located on the outer wall of the pipe 1. Then, the bolt 23 is inserted into the inner side of the positioning groove 221 and passes through the positioning grooves 221 of the two side frames 22 on the top of the protective bottom shell 21. By rotating the nut 231, the protective bottom shell 21 and the protective top shell 211 are fastened together. At the same time, the sealing docking post 215 and the insert block 214 are inserted into the inner side of the slot 217 and the sealing docking groove 216, so that the protective top shell 211 is aligned with the inner side of the protective bottom shell 21. By rotating the bolt 23, the second sealing ring 213 and the first sealing ring 212 are pressed against the outer wall of the pipe 1, which better seals the pipe, prevents water from entering, and reduces the entry of gas.

[0026] A gas inlet 26 is installed on the top of the outer wall of the protective top shell 211. The gas inlet 26 can be connected to the gas intake end 33 to draw the natural gas leaking inside the protective structure 2 to the gas intake end 33. A processor 25 is installed on the top of the outer wall of the protective top shell 211, and a natural gas detector 251 is installed at the bottom of the processor 25 and inside the protective top shell 211 to check whether there is a natural gas leak inside the protective structure 2. A warning light 252 is installed on the top of the processor 25 and on the outer wall of the protective top shell 211 to issue an alarm. The guide structure 3 includes a gas intake pipe 31, and multiple connecting pipes 32 are installed at the bottom of the outer wall of the gas intake pipe 31. The gas intake end 33 is installed at the bottom of the connecting pipe 32 for easy insertion into the inside of the gas inlet 26.

[0027] It should be noted that in this embodiment, by activating the processor 25, the natural gas inspection machine 251 at the bottom of the processor 25 inspects the inside of the protective structure 2, that is, the pipeline connection. When the detected natural gas leak triggers the warning light 252, an alarm is issued, and the guide structure 3 is activated. The leaking natural gas is drawn into the inside of the suction pipe 31 through the suction end 33 inserted into the inside of the priming port 26, thus preventing natural gas from leaking out.

[0028] The working principle of this utility model is as follows: When installing the protective structure 2, the protective bottom shell 21 is first placed on the outer wall of the pipe 1, and the protective top shell 211 is also placed on the protective bottom shell 21 and located on the outer wall of the pipe 1. Then, the bolt 23 is inserted into the inner side of the positioning groove 221 and passes through the positioning groove 221 of the two side frames 22 on the top of the protective bottom shell 21. By rotating the nut 231, the protective bottom shell 21 and the protective top shell 211 are fastened together. At the same time, the sealing docking post 215 and the insert block 214 are inserted into the inner side of the slot 217 and the sealing docking groove 216, so that the protective top shell 211 is aligned with the inner side of the protective bottom shell 21. By rotating the bolt 23, the second sealing ring 213 and the first sealing ring 212 are pressed against the outer wall of the pipe 1, so as to better seal the pipe, prevent water from entering, and reduce the entry of gas.

[0029] After installation, the processor 25 is started, and the natural gas inspection machine 251 at the bottom of the processor 25 is used to inspect the inside of the protective structure 2, that is, the pipeline connection. When a natural gas leak is detected, the warning light 252 is triggered, thus issuing an alarm and activating the guide structure 3. The leaking natural gas is drawn into the inside of the suction pipe 31 through the suction end 33 inserted into the priming port 26, preventing natural gas from leaking out.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective structure for a natural gas pipeline connection, comprising a pipeline (1), wherein a protective structure (2) is fitted onto the outer wall of the pipeline (1), and a guiding structure (3) is inserted into the top of the outer wall of the protective structure (2), characterized in that: The protective structure (2) includes a protective bottom shell (21), the inner side of which is connected to a protective top shell (211), and the outer walls of the protective top shell (211) are fixedly connected to side frames (22).

2. The natural gas pipeline connection sealing and protection structure according to claim 1, characterized in that: The inner sides of the left and right sides of the protective top shell (211) are equipped with a second sealing ring (213), and the bottom of both ends of the second sealing ring (213) are equipped with sealing docking posts (215). The bottom of the left and right sides of the protective top shell (211) are equipped with insert blocks (214).

3. The natural gas pipeline connection sealing and protection structure according to claim 1, characterized in that: The protective bottom shell (21) has slots (217) on the top of the left and right sides, and a first sealing ring (212) is installed on the inner side of the left and right sides of the protective bottom shell (21). The first sealing ring (212) has sealing mating grooves (216) on the inner side of both ends, and a sealing strip (24) is installed on the top of the protective bottom shell (21).

4. The natural gas pipeline connection sealing and protection structure according to claim 1, characterized in that: The outer wall of the side frame (22) is provided with a plurality of positioning grooves (221), and a bolt (23) is inserted into the inner side of the positioning groove (221), and a nut (231) is installed at the bottom of the bolt (23).

5. A sealing and protective structure for a natural gas pipeline connection according to claim 2, characterized in that: An air intake port (26) is installed on the top of the outer wall of the protective top shell (211), and a processor (25) is installed on the top of the outer wall of the protective top shell (211).

6. A sealing and protective structure for a natural gas pipeline connection according to claim 5, characterized in that: A natural gas inspection machine (251) is installed at the bottom of the processor (25) and inside the protective top shell (211), and a warning light (252) is installed at the top of the processor (25) and outside the protective top shell (211).

7. A sealing and protective structure for a natural gas pipeline connection according to claim 1, characterized in that: The guide structure (3) includes an air intake tube (31), and a plurality of connecting tubes (32) are installed at the bottom of the outer wall of the air intake tube (31), and an air intake end (33) is installed at the bottom of the connecting tubes (32).

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